NC, Smokies, 20060619
CabinCove, yard to pond, flowers and lichens.
Heliopsis helianthoides
In garden; brought back from some trail; starting to fl.
| | GEN | | v tall, unbr except short paired brs at top |
| | ST | | v stout, ribbed but not winged |
| | LF | | opp, delt, acute to sl acum, trunc base, 130x80+30mm, petiole sl winged, sharply deeply toothed (1-2 per 10mm), 3 veins from base, veins imp ab andall v r bel, lter and shiny bel, dull ab, glabrate w v sp strig bristles along veins bel and petiole |
| | INFL | | sev fls, 1 per node on long peduncles (to 200mm) |
| | PHYL | | 1 row, lfy, rhomb and spreading, to 20x5mm, acute, sh pubesc, joined bel, none |
| | RECEPT | | conic, chaffy, 7-9mm, keeled, white scar, abrupt obtuse v sl erose yell tip |
| | RAY | | 15, yell, to 30x10mm, min 3-toothed, spread, ster?, v slender styles without stigmas |
| | DISC | | yell, 15mm, convex, many, corolla 5mm, stig w long delt-acum apps, anths black |
| | OV | | glab w v few wavy hairs on angles |
No, the ray fls
are fertile.
Irpex lacteus
On flaking bark of standing dead sumac on Tobacco Road.
| | CAP | | white, barely projecting at margs of fertile surface, hairy |
| | GILL | | short irreg whitish teeth |
Ramalina culbersoniorum [voucher]
Scattered among Usneas on sumac and apple bark and twigs on Tobacco Road and vicinity.
| | GEN | | fruticose lichen, on rough hardwood bark and twigs, small |
| | THAL | | spreading but not particularly pend, well br'd from single pt of att, brs flat, shiny lt yellish green, irreg sinewy textured, faint whitish streaks, whiter bel, 2-5mm wide, some min warts near marg on some brs |
| | MED | | white, v thin, K+ weak yell, C-, KC+ orange, CK+ yell |
| | APO | | disks, pink inside, to 3mm wide, scattered, not uncommon, well raised, att near tips of brs (either center or marg), v white pruinose, marg does not look lecanorine |
| | SPORE | | colorless, smooth, 2 cell, cell wall thin, septum perfectly straight, ellip-oblong, v sl bent, 12-13x5-6um, 8 per ascus |
Usnea ceratina
Not common; found this one on sumacs on Tobacco Road.
| | GEN | | beard lichen, usnea, on sumac |
| | THAL | | v long and pend, to 250-300mm long, many perp brs near base, not many cracks, lt green, hard cortex, v d pap, v d fibrillose, no apo, no isidia, no soredia, axis white to pink, cortex 12% medulla 20% axis 35%, cortex hard |
| | MED | | white to pink, fairly soft (disintigrates v easily in K), K+ orange, C-, CK+ bright yell orange, KC+ yellow (probably from cortex) |
Chemistry looks off, and the photo is way off, but it keys to this fairly consistently. The white-topped tubercles v rarely grow actual isidia, and are absent or merely dense papillae throughout most of the thallus. Looks totally different from yesterday's one, but chemistry is the same, all the same features are present, just in vastly different relative abundance.
Not common, I think; this one on sumac on Tobacco Road.
| | GEN | | beard lichen, usnea, on sumac |
| | THAL | | pend but stiff, well-br'd w some esp thick darkish brs near base, smooth and dull and dk near base, med grey-yell-green, sp pap, some brs d w short fibrils, some tiny soralia w tiny isidia, axis pinkish, cortex 14% medulla 22% axis 28% |
| | MED | | whitish, K+ CK+ KC+ yell turning quickly blood red, C- |
Very common; on all manner of decid trees.
| | GEN | | beard lichen, usnea, on sumac |
| | THAL | | lt yell green, d br'd shrubby thing, not pend, v d fibrilose (some short and almost like isidia or papillae), otherwise smooth and shiny, axis v thick and dk pink |
| | APO | | common, concave, small to huge, pinkish or yellowish, pruinose, lots of long and short fibrils from marg |
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